
§
16.3
line
integrals
Ñ=(
etat
,
etsint
,
t
)
Sol
.
d÷=(
etast-etts.int/,etsTnt+etwit
,
1)
#
7
Find
the
moment
of
inertia
about
the
Z-axis
,
i.
e.
the
value
of
t.gr/=etwst-etsint)Iets-mt-etcort)--#L=crfetx7-y4ds
=
eeÉ
=
ze'#
for
a
wire
of
constant
density
dbiYz-orfYf@tu.t
,
I
Cetsintj
)2é#
dt
along
the
wine
e
:
=D
/
o
"
eat
zé
at
F
=
etwsti-etsintj-tk-t.ES?-zeit-Td(zeit-i
)
from
t
=
0
to
-1=27
.
$=zet
C-
frs
,
25€
]
2ei
FACT
:
{
fix
-7
.
2-
ids
=
fab
firm
,
/
¥1
/
lot
=
If
Jr
,
s
ds
'
=
¥
.2f↳¥Tdg
}
Eds
B
3-
after
=
§
e.
%)
?
-
}
?
]
.
pg